| The awakening of BL Lacertae: observations by Fermi, Swift and the GASP-WEBT CM Raiteri, M Villata, F D'Ammando, VM Larionov, MA Gurwell, ... Monthly Notices of the Royal Astronomical Society 436 (2), 1530-1545, 2013 | 140 | 2013 |
| Short-term flux and colour variations in low-energy peaked blazars B Rani, AC Gupta, A Strigachev, R Bachev, PJ Wiita, E Semkov, ... Monthly Notices of the Royal Astronomical Society 404 (4), 1992-2017, 2010 | 94 | 2010 |
| Optical flux and spectral variability of blazars H Gaur, AC Gupta, A Strigachev, R Bachev, E Semkov, PJ Wiita, ... Monthly Notices of the Royal Astronomical Society 425 (4), 3002-3023, 2012 | 88 | 2012 |
| Multiwavelength intraday variability of the BL Lacertae S5 0716+ 714 AC Gupta, TP Krichbaum, PJ Wiita, B Rani, KV Sokolovsky, P Mohan, ... Monthly Notices of the Royal Astronomical Society 425 (2), 1357-1370, 2012 | 70 | 2012 |
| Multiwavelength intraday variability of the BL Lacertae S5 0716+ 714 AC Gupta, TP Krichbaum, PJ Wiita, B Rani, KV Sokolovsky, P Mohan, ... Monthly Notices of the Royal Astronomical Society 425 (2), 1357-1370, 2012 | 70 | 2012 |
| The large amplitude outburst of the young star HBC 722 in NGC 7000/IC 5070, a new FU Orionis candidate EH Semkov, SP Peneva, U Munari, A Milani, P Valisa Astronomy & Astrophysics 523, L3, 2010 | 67 | 2010 |
| Quasi-simultaneous two-band optical variability of the blazars 1ES 1959+ 650 and 1ES 2344+ 514 H Gaur, AC Gupta, A Strigachev, R Bachev, E Semkov, PJ Wiita, ... Monthly Notices of the Royal Astronomical Society 420 (4), 3147-3162, 2012 | 64 | 2012 |
| Exceptional outburst of the blazar CTA 102 in 2012: the GASP–WEBT campaign and its extension VM Larionov, M Villata, CM Raiteri, SG Jorstad, AP Marscher, I Agudo, ... Monthly Notices of the Royal Astronomical Society 461 (3), 3047-3056, 2016 | 61 | 2016 |
| Nature of intranight optical variability of BL Lacertae H Gaur, AC Gupta, R Bachev, A Strigachev, E Semkov, M Böttcher, ... Monthly Notices of the Royal Astronomical Society 452 (4), 4263-4273, 2015 | 50 | 2015 |
| Recent photometry of symbiotic stars A Skopal, M Vaňko, T Pribulla, D Chochol, E Semkov, M Wolf, A Jones Astronomische Nachrichten: Astronomical Notes 328 (9), 909-916, 2007 | 50* | 2007 |
| Multiband optical–NIR variability of blazars on diverse time-scales A Agarwal, AC Gupta, R Bachev, A Strigachev, E Semkov, PJ Wiita, ... Monthly Notices of the Royal Astronomical Society 451 (4), 3882-3897, 2015 | 39 | 2015 |
| Optical photometric and spectral study of the new FU Orionis object V2493 Cygni (HBC 722) EH Semkov, SP Peneva, U Munari, MK Tsvetkov, R Jurdana-Šepić, ... Astronomy & Astrophysics 542, A43, 2012 | 38 | 2012 |
| A long-term photometric study of the FU Orionis star V 733 Cephei SP Peneva, EH Semkov, U Munari, K Birkle Astronomy & Astrophysics 515, A24, 2010 | 34 | 2010 |
| Photometric and spectroscopic variability of the FUor star V582 Aurigae EH Semkov, SP Peneva, U Munari, M Dennefeld, H Mito, DP Dimitrov, ... Astronomy & Astrophysics 556, A60, 2013 | 32 | 2013 |
| Optical and radio variability of BL Lacertae H Gaur, AC Gupta, R Bachev, A Strigachev, E Semkov, PJ Wiita, ... Astronomy & Astrophysics 582, A103, 2015 | 30 | 2015 |
| Spectral energy distribution variation in BL Lacs and flat spectrum radio quasars B Rani, AC Gupta, R Bachev, A Strigachev, E Semkov, F D’Ammando, ... Monthly Notices of the Royal Astronomical Society 417 (3), 1881-1890, 2011 | 29 | 2011 |
| Spectral energy distribution variation in BL Lacs and flat spectrum radio quasars B Rani, AC Gupta, R Bachev, A Strigachev, E Semkov, F D’Ammando, ... Monthly Notices of the Royal Astronomical Society 417 (3), 1881-1890, 2011 | 27 | 2011 |
| Intranight variability of 3C 454.3 during its 2010 November outburst R Bachev, E Semkov, A Strigachev, B Mihov, AC Gupta, S Peneva, ... Astronomy & Astrophysics 528, L10, 2011 | 26 | 2011 |
| Recent photometry of symbiotic stars A Skopal, S Shugarov, M Vaňko, P Dubovský, SP Peneva, E Semkov, ... Astronomische Nachrichten 333 (3), 242-255, 2012 | 25 | 2012 |
| Long-Term Multicolour Photometry of the Young Stellar Objects FHO 26, FHO 27, FHO 28, FHO 29, and V1929 Cygni SI Ibryamov, EH Semkov, SP Peneva Publications of the Astronomical Society of Australia 32, e021, 2015 | 23 | 2015 |
Sunay IbryamovDepartment of Physics and Astronomy, University of ShumenVerified email at shu.bg
